The Av month sits in a somber segment of the Jewish calendar, yet it also hosts one of the most human moments of connection and reunion: Tu B'Av, the holiday sometimes called the festival of love. Known in Hebrew as the month of Av, this period is the fifth month in the religious (ecclesiastical) year, counting from Nisan, and the eleventh month in the civil year, counting from Tishrei. In a leap year the calendar adds Adar I and Adar II, but the position of Av remains the same in the ceremonial count, and its length is always 30 days. Across Jewish communities, Av carries a distinctive mood: it is a month of transition, which culminates in the dramatic observance of Tisha B'Av, the fast that commemorates multiple calamities in Jewish history.
Dates and Position in the Year
The dates of the Av month shift from year to year in the Gregorian calendar, because Av is anchored to the Hebrew lunisolar calendar. Some key points about where Av fits in the yearly cycle:
Av is the 5th month of the ecclesiastical year (counting from Nisan).
Av is the 11th month of the civil year (counting from Tishrei) in a non-leap year; in a leap year the calendar inserts Adar I and Adar II, but Av’s position in the yearly sequence remains as described for the civil count.
Av has 30 days in every year.
Rosh Chodesh Av can happen on the 1st of Av and/or the 2nd of Av, depending on the year. When Av is a two-day Rosh Chodesh, some communities celebrate the beginning of Av with special readings and added observances.
Typical Gregorian Window and Variations
Because Av follows the lunar cycle, its appearance in the Gregorian calendar slides between late July and late August in most years. In some years it straddles July and August more narrowly, in others it sits mostly in August. A few practical notes for readers who track Av in relation to daily life:
In many years, the 1st of Av appears in late July or early August, and the 29th or 30th of Av closes the month just before Elul.
In leap years, the addition of Adar I and Adar II does not alter the length of Av itself, but it reshapes the surrounding months, which can shift the exact days of Shabbatot and holidays that touch the Av period.
Special observances like Rosh Chodesh (the new month) in Av occur with the same rules that govern Rosh Chodesh in other months: some days are two-day affairs, others single-day, depending on the calendar’s geometry.
Av is not only a sequence of dates; it carries a deep sense of memory and interpretation. In Jewish tradition, this month is associated with both the memory of destruction and the possibility of renewal. Several strands intersect here:
Temples destroyed—The 9th of Av, or Tisha B'Av, is the focal point of communal lamentations for the destruction of the First and Second Temples in Jerusalem, among other calamities that occurred on or around this date in Jewish history.
Bein HaMetzarim—A period often described as the Three Weeks of lament and reflection, culminating in the fast of Tisha B'Av. This was traditionally a time of mourning and introspection about exile, loss, and hardship, guiding communities toward renewed commitment and hope after the fast.
Tu B'Av—Interwoven in this month is a counterbalance: on the 15th of Av, Tu B'Av, a day historically associated with matchmaking, love, and communal celebration. It stands as a reminder that even within a period of mourning, there is room for joy and social bonds to flourish.
Names and meanings—The term Av itself has layered etymologies in Jewish scholarship. Some traditions connect the name to a classical Babylonian or Hebrew root; others interpret it within the poetic cycle of the Hebrew months. Regardless of etymology, many modern readers understand Av as a time for humility, introspection, and a language of lament that can yield to future restoration.
During the Av month, several observances and practices stand out. They range from solemn fasts and restrictions to lighter, more communal celebrations. Here is a structured guide to the key dates, their meanings, and typical customs:
Rosh Chodesh Av (1 Av and 2 Av, when applicable)
In Jewish life, Rosh Chodesh Av marks the beginning of the month’s celebrations in some communities, and a day of festive prayer in others depending on regional custom.
On days when Rosh Chodesh coincides with Shabbat, the day is often observed with a combination of Shabbat levity and Rosh Chodesh readings, depending on local tradition.
Tu B'Av (15 Av)
Historically a sweet counterpart to Tisha B'Av, this day has transformed into a modern celebration of love, friendship, and social connectedness.
In many communities, Tu B'Av is a time for social gatherings, fairs, and in some places, ceremonial dances or shared meals that emphasize community bonds.
Tisha B'Av (9 Av)
The central observance of Av for many communities is the fast day Tisha B'Av, a day of mourning and reflection on the losses suffered by the Jewish people across centuries.
Customs often include reading the biblical Book of Lamentations (Eicha), kinot (dirges), and escalating introspection about exile and longing for restoration.
Observances are typically strict: full-day fasting, restrictions on eating or drinking, and limits on certain pleasures and activities to reflect humility and contemplation.
Bein HaMetzarim (the Three Weeks) culminating in Tisha B'Av
This period is characterized by a traditional or customary mood of mourning, with varying restrictions on music, haircuts, and festive events, depending on community practice.
In Israel, some communities interpret the period more mildly, while in many diaspora communities, the mood and restrictions are more pronounced.
Shabbatot and other observances within Av
There are occasions when a Shabbat falls during Av, which may adjust liturgy and customs for that Shabbat, depending on local practice.
Tu B’Av: The Festival of Love
Among the notable features of the Av calendar is a day that brings brightness to a month often associated with lament and restraint. Tu B'Av—the 15th day of Av—has a long history and multiple interpretations:
Historical origins point to a time when communities celebrated love and courtship, sometimes compared to the Jewish counterpart of matchmaking festivals in ancient Mediterranean cultures.
Modern customs largely emphasize joy, social warmth, and communal festivities. People often organize group activities, dances, and shared meals, turning the day into an opportunity to strengthen friendships and communal cohesion.
Symbolic meaning extends beyond romance: Tu B'Av is also seen as a day to celebrate compassion, generosity, and the renewal of social ties that support resilience during a month that culminates in Tisha B'Av’s somber mood.
The heart of the Av calendar for many communities is Tisha B'Av, a day of fasting and deep memory. Its observance is a cornerstone of Jewish historical consciousness and liturgical practice:
Fast day—A full-day fast beginning at sundown the evening before and ending after nightfall the following day for most communities. The fast is observed with abstention from food and drink, and many people also limit other pleasures (depending on custom).
Liturgical service—Evening services on the eve of Tish'a B'Av include readings from Eicha, the Book of Lamentations, which laments the destruction and exile. Kinot, or lamentations, are recited to express collective sorrow and yearning for restoration.
Torah readings and kinot—During the fast day, some communities read special portions from the Prophets and recite additional elegies that focus on the temple era, exile, and the hope for rebuilding and return.
Restrictions and customs—The day is marked by a mood of mourning: some people refrain from music, leather shoes, bathing for pleasure, and other customary expressions of joy. The exact laws and practices vary by tradition, with stricter observances in some communities and more leniencies in others.
The Av month is closely tied to a period of mourning that Jewish communities have historically observed as the Bein HaMetzarim, literally “theBetween-the-Munions,” often translated as the Three Weeks or the Nine Days of mourning that lead to Tisha B'Av. The relationship between Av and these days is both historical and liturgical:
The Three Weeks begin with the fast of 17 Tammuz (not in Av itself, but immediately prior in the yearly sequence) and culminate on Tisha B'Av, forming a continuous arc of memory and contemplation about destruction and exile.
Many communities extend this mood to include the days of the Nine Days, a subset of mourning that intensifies as Tisha B'Av approaches. Customs vary—from refraining from weddings and festive celebrations to more comprehensive restrictions on music and joyful activities.
In Israel, the approach to these days can be more moderated, while in diaspora communities, the mood is often more pronounced, reflecting different historical experiences and communal practices.
Rosh Chodesh in Av: Shabbat Rosh Chodesh and Two-Day Observances
Av sometimes contains either a single or a double Rosh Chodesh (the beginning of the new Hebrew month). Key points include:
Rosh Chodesh Av can be observed on 1 Av, and if 1 Av falls on a Sunday or Shabbat, some communities observe Rosh Chodesh Av on the adjacent day as well.
When Rosh Chodesh falls on Shabbat, special readings and certain liturgical additions may be included in the service, depending on local custom and tradition.
These calendar quirks remind observers that Av is a month of transition, connecting the mournful anticipation of Tisha B'Av with the renewal signaled by the start of a new month.
Liturgical Practices in Av
Across communities, the Av month maṇifests in ritual and study as follows:
Eicha readings during Tisha B'Av, with kinot and lamentations recited to evoke historical memory and communal longing for redemption.
Torah study often focuses on the themes of exile, suffering, and eventual restoration, weaving a narrative of growth through hardship.
Prayers for restoration and petitions for peace—these prayers acknowledge historical wounds while expressing hope for future rebuilding and spiritual renewal.
Practical Guide for Observers in Av
For individuals and families seeking to observe Av in a balanced way, here are practical guidelines often observed in various communities:
Fasting rules during Tish'a B'Av; check if any exemptions apply (pregnant or nursing individuals, those with medical concerns, etc.).
Restriction on festive activities and an emphasis on solemn reflection during the Nine Days, especially in the days leading to Tisha B'Av.
Household and communal observances may include reading, study sessions, and group discussions about historical events and their relevance to contemporary Jewish life.
Tu B'Av festivities typically occur on or around the 15th of Av, offering a complementary note of communal joy within the broader Av period.
Av in the Diaspora vs Israel: Variations in Practice
Different Jewish communities around the world bring diverse customs to the Av month. While the underlying calendar is the same, the emphasis and practices can differ in meaningful ways:
In Israel, the mood of the Three Weeks and Tisha B'Av is often less intense than in some diaspora communities, reflecting the national calendar and a sense of ongoing national renewal.
In the diaspora, many communities emphasize the mourning period with more formal restrictions, communal readings, kinot, and structured study programs during the Nine Days and the days leading up to Tisha B'Av.
Tu B'Av is celebrated in various ways in both contexts, with gatherings, music-making, and social events that emphasize community and love as a counterbalance to the month’s historical lamentations.
Etymology and Semantic Variations
The word Av has multiple scholarly and literary threads. Some readers trace the name to ancient calendars borrowed from Mesopotamian or Near Eastern sources, while others situate it within Hebrew linguistic tradition. Across contemporary discussions, scholars and educators often describe Av as a month that invites:
Memory and learning about past losses and current resilience.
Preparation for renewal as the cycle moves toward Elul and the High Holidays, even though the mood of Av is more restrained than that of other months.
Celebration and community through Tu B'Av’s social warmth, which helps balance the year’s calendar of remembrance with moments of joy and connection.
Frequently Asked Questions about Av
Below are concise answers to common questions people ask when exploring the Av month and its observances:
What is the significance of Tish'a B'Av? It is the major fast day marking the destructions in Jewish history and generally considered the culmination of the Three Weeks of mourning; its liturgy and customs emphasize reflection, memory, and longing for rebuilding.
When is Tu B'Av? Tu B'Av falls on the 15th day of Av and is traditionally a time of communal warmth, matchmaking, and celebration in many communities.
Why does Av matter beyond lament? While Av contains solemn observances, it also hosts Tu B'Av, a countervailing day of joy, reinforcing the idea that sorrow in the cycle of history can give way to renewed social bonds and hope.
Do all communities observe the Nine Days the same way? No. Observances and restrictions during the Nine Days vary by custom and tradition. Some communities observe strict limitations, while others adopt a more lenient approach outside of Tisha B'Av itself.
How does the calendar handle Av in leap years? In leap years the calendar includes Adar I and Adar II, but Av remains 30 days long and sits in its usual place in the sequence of months.
Concluding Reflections on Av
The Av month Jewish calendar is a nuanced tapestry of memory, yearning, and communal life. Its dates anchor a historical arc—the destructions, exile, and longing for restoration—while its more buoyant moments, like Tu B'Av, remind communities of the enduring power of love, friendship, and social solidarity. For students of Jewish history and for people seeking to understand how a calendar can shape mood and meaning, Av offers a vivid case study in how timekeeping, liturgy, and everyday life intersect.
Appendix: Quick Reference of Key Av Dates and Concepts
Below is a concise reference you can bookmark or print for quick orientation during the Av period. Note that exact Gregorian dates shift year to year.
1 Av — Rosh Chodesh Av (sometimes observed as a two-day Rosh Chodesh, depending on the year).
2 Av — Potential second day of Rosh Chodesh Av in certain years.
9 Av — Tisha B'Av, the major fast day and culmination of the mourning period for the Temples and other calamities in Jewish history; liturgical readings include Eicha (Lamentations) and kinot.
15 Av — Tu B'Av, the Festival of Love, a day of joyful communal activities and social connection.
Bein HaMetzarim — The period of mourning that runs toward Tisha B'Av, commonly described as the Three Weeks, with more intense restrictions during the Nine Days.
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